All releases of Blitz JavaSpaces

Release Notes: All dependencies on external concurrency libraries were removed and the codebase was ported onto java.util.concurrent. Version information was made available as a statistic alongside all others. JDK 1.4 support has been removed as part of the work on concurrency libraries, JDK 5 is now the minimum requirement.

Release Notes: A VMStat-like tool (CondensedStats) was added. The information provided by the I/O and Thread statistics was extended. The LocalSpace implementation can now be started and stopped repeatedly within a single JVM instance. A new higher performance logger was added, making persistent mode up to fifty percent faster.

Release Notes: Several bugs in *IfExists were fixed. An
IllegalMonitorStateException in FIFO notify mode
was fixed. A bug in operations statistics was
fixed and a threads statistic was added. The
MonitorStats tool was modified to accept a
loop-time in seconds. A tool to reload lookup
settings from a configuration file was added.

Release Notes: The blocking operations core has been revised, leading to significant performance improvements. Various new statistics have been added. Several race conditions in the indexing code have been removed and the indexing core has been simplified, leading to improved performance. Support for running user code at boot time is now provided.

Release Notes: Blitz's core indexing and cache code was updated to remove several race conditions and improve both memory usage and performance. The Jini registry dumping tool was enhanced to support more methods for specifying target registries. It is now possible to have user-code executed at boot time once the space is initialized but prior to the proxy being published. Dispatching of blocked operations was reworked to be more cache friendly and faster.

Release Notes: A problem where active lease reaping was not
purging all relevant entries has been fixed. The
WriteDaemon is now much less keen to reap and
respawn threads. A debugging facility to assist
developers in understanding why take/read searches
have failed was added.

Release Notes: A force option was added to the SyncAndShutdown
tool to effect shutdown in the presence of active
transactions. A problem where remote calls could
be refused after a failed cleanup due to active
transactions was fixed. A
ConcurrentModificationException which could occur
when aborting all currently active transactions
was fixed. Logging of notify-related event
delivery failures was improved to assist in
debugging.